130 Trans. Acad. Sct. of St. Louis. 
as Wide, the sides parallel, the basal angles distinctly rounded; eyes 
larger, at one-half more than their own length from the base, the 
punctures relatively coarse and less sparse; antennae similar; prothorax 
distinctly more elongate, wider than the head, the sides more nearly 
parallel, straight, the punctures coarser, rather sparse, the medial series 
similarly impressed; elytra much larger, distinctly elongate, two-fifths 
widerand a third longer than the prothorax, the sides straight and 
feebly diverging, the punctures fine and feeble, more close-set, the 
series very uneven and ill-defined. Male with the surface of the fifth 
and sixth ventrals wholly unmodified throughout, the latter not im- 
pressed at tip, the apex rather narrow, with a gradually formed sub- 
triangular sinus, one-fourth as wide as the tip, distinctly wider than 
deep, with the bottom angle obtuse. Length 3.8 mm.; width 0.7 mm. 
Mississippi (Vicksburg) and Indiana (Cab. Levette)....leviceps n. sp. 
The male of analis, from Morgan City, has the shallow 
cuspidiform emargination of the sixth ventral rather deeper, 
more abruptly formed or more triangular than the Texas 
males, and the eyes are a trifle smaller, but there are no other 
tangible differences. 
Paralathra n. gen. 
This genus is somewhat composite, for, with a general 
habitus which is not very distinctive and suggestive of Lath- 
rotaxis, it has the gular sutures of Lathrobiella and the hind 
tarsi somewhat as in ZLathrotaxis, from which it differs in 
in the form of the gular sutures, densely punctate and dull 
abdomen and narrower neck. The general surface is decid- 
edly more convex than in Pseudolathra, the latter also hav- 
ing the gular sutures much more widely separated at base or 
more strongly divergent. I am compelled therefore to 
regard the single species as a distinct genus; it may be 
described as follows : — 
Body rather stout, parallel, polished, the abdomen dull, pale and bright 
rufous in color, the head dark rufo-piceous, the abdomen infuscate, be- 
coming rufescent at tip, the legs and antennae pale; head rather well 
developed, somewhat wider than long, parallel and nearly straight at 
the sides, truncate at base, with the angles distinctly rounded; eyes 
large and well developed but feebly convex, at about a third more than 
their own length from the base, the punctures extremely sparse, not 
very coarse; antennae nearly half as long as the body, slender, feebly 
incrassate distally, the medial joints not quite twice as long as wide; 
